{"cve":"CVE-2026-43228","nvd":{"published":"2026-05-06T12:16:42.710","modified":"2026-10-15T11:17:30.447","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: Replace BUG_ON with error handling for CNID count checks\n\nIn a06ec283e125 next_id, folder_count, and file_count in the super block\ninfo were expanded to 64 bits, and BUG_ONs were added to detect\noverflow. This triggered an error reported by syzbot: if the MDB is\ncorrupted, the BUG_ON is triggered. This patch replaces this mechanism\nwith proper error handling and resolves the syzbot reported bug.\n\nSinged-off-by: Jori Koolstra <jkoolstra@xs4all.nl>","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-617"],"references":["https://git.kernel.org/stable/c/559f856b109c45844816a1693e259f93d3556c61","https://git.kernel.org/stable/c/b226804532a875c10276168dc55ce752944096bd","https://git.kernel.org/stable/c/b6536c1ced315fa645576d3a39c6e07f2a472962"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-43228","score":0.00126,"percentile":0.02284,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}